182 THE SURVIVAL OF THE UNLIKE. [iV. 



suddenly in the past few years, is that they have come 

 from each of these three types, — Henderson from the 

 Sieva type, Thorburn and Dreer from the Potato 

 Lima type, and Burpee from the Large Lima type, — 

 thus showing that each of these types or races is devel- 

 oping along independent but parallel lines ; and these 

 lines are also identical with the method of evolution 

 which was early assumed by the common garden bean 

 and with the departure which has just now appeared in 

 the old White Dutch Runner. 



The Soy bean, now coming into popular cultivation 

 in the south, affords a most striking example of the 

 evolution of a new species, and one, moreover, which is 

 accepted by careful botanists. This plant is unknown 

 wild, and there is every reason to consider it to be a 

 modified form of the wild Olycine Soja of China and 

 Japan; but its botanical characters are so unlike those 

 of its ancestral household that Maximo wicz, — a most 

 conservative botanist, — describes it outright as a new 

 species. Glycine hispida. 



The Lesson of the Garden -Experiments. 



I have now brought to your attention a few familiar 

 plants for the purpose of showing that what are to all 

 intents and purposes good species have originated in 

 recent years ; and that, whilst botanists demand that the 

 origination of species within historic times shall consti- 

 tute the only indisputable proof of organic evolution, 

 they nevertheless refuse to accept as species those forms 

 which have thus originated, and which answer every 

 demand of their definitions and practice. 



The proofs of the evolution of species, drawn from 



